package com.bit.demo1;

public class date {
    public int year = 2021;
    public int month = 10;
    public int day = 23;
    public date(){
        System.out.println("调用不带参数的构造方法!");
    }
    public date(int year,int month,int day){
        System.out.println("调用带三个参数的构造方法！");
    }

}

